Aflagpole that is 30 feet tall casts a shadow that extends 42 feet from the base of the flagpole. what is the distance from the top of the flagpole to the end of the shadow?

What is sin 7x/4 ? i need on this urgent trig

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,